CN202415701U - Electrolytic cell for electrolyzing rare-earth metal - Google Patents
Electrolytic cell for electrolyzing rare-earth metal Download PDFInfo
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- CN202415701U CN202415701U CN2011205324738U CN201120532473U CN202415701U CN 202415701 U CN202415701 U CN 202415701U CN 2011205324738 U CN2011205324738 U CN 2011205324738U CN 201120532473 U CN201120532473 U CN 201120532473U CN 202415701 U CN202415701 U CN 202415701U
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Abstract
The utility model provides an electrolytic cell for electrolyzing rare-earth metal, and the electrolytic cell is characterized in that a cold pasting and ramming layer and a graphite groove are respectively arranged inside an inner steel sleeve; a bearing crucible is arranged inside the graphite groove; a heat-preservation layer is arranged between the inner steel sleeve and an outer steel sleeve; and a cathode group and an anode group are respectively connected with a cathode and an anode of rectification equipment through a conductive copper bar. By utilizing a manner of improving a groove shape, energy conservation is realized; a furnace opening is reduced, a hearth is deepened, materials are automatically fed, a product is discharged from the furnace without power failure and the like, so that the heat radiation of the furnace opening is reduced, low-temperature electrolysis is performed and semiautomatic continuous work is realized; and therefore, the aims of low energy consumption and high yield are achieved.
Description
Technical field
The utility model relates to a kind of electrolyzer that is used for re metal electrolyzing, is applied to the fluoride system fused salt electrolysis process and produces all kinds of rare earth metals and alloy thereof, belongs to the pyrometallurgy technical field.
Background technology
At present; Alloys such as single rare earth metals such as La, Ce, Pr, Nd and Pr-Nd, Nd-Fe, Dy-Fe, Gd-Fe are all through fluoride system fused salt electrolysis explained hereafter; But on scale and production capacity, all still remain at low levels; Simultaneously, exist that energy consumption is big, seriously polluted, the mechanize level is low, manipulation strength is big and problem such as electrolysis is discontinuous.
Many in the market grooveds are: the round groove of 3KA～4KA, and the life-span is shorter, generally about half a year; 6KA～8KA electrolyzer remains little electrolyzer pattern, is main with hand-fed and the manual work mode of coming out of the stove; The 10KA electrolyzer suitability for industrialized production occurred in places such as south, the north, and groove is pressed generally at 9～10 volts, and energy consumption is bigger, aspect energy-conservation, still has shortcoming.
Summary of the invention
The purpose of the utility model provides a kind of electrolyzer that is used for re metal electrolyzing, its less energy-consumption, output height.
For this reason; The utility model provides a kind of electrolyzer that is used for re metal electrolyzing; It is characterized in that cold smashing stuck with paste the inside that ramming layer and graphite cuvette are separately positioned on interior steel bushing, accepts the inside that crucible is arranged on graphite cuvette; Between steel bushing and the outer steel sleeve, the negative electrode crowd was connected with negative pole, the positive pole of rectifying installation respectively through conducting copper with anode clusters in thermal insulation layer was arranged on.
Preferably, negative electrode crowd and anode clusters comprise at least two negative electrodes and at least two anodes respectively.
Preferably, anode is a graphite, and negative electrode is a tungsten bar.
Preferably, conducting copper comprises the conducting copper and the anodic conducting copper of negative electrode, and negative electrode is crimped on the surface of negative electrode conducting copper through bolt, and anode is crimped on the surface of anode conducting copper bar through small box fastener.
Preferably, the length of graphite cuvette is 1120～1150mm, and width is 380～420mm, highly is 510～530mm.
Preferably, the length of graphite cuvette is 1130mm, and width is 400mm, highly is 520mm.
Preferably, anodic length is 410～430mm, and width is 220～240mm, highly is 95～105mm.
Preferably, anodic length is 420mm, and width is 230mm, highly is 100mm.
According to the utility model; Under the direct current of rectifying installation is supplied with; Electric current forms a loop line through graphite anode, tungsten cathode and fused salt melt, in melt, forms the electrical forces effect of an orientation, and rare earth ion moves to negative electrode; Obtain electron reduction and become metal simple-substance, fall in the crucible.When metal collection arrives to a certain degree, go out furnace apparatus with vacuum, the titanium pipe stretches in the crucible, is extracted into metal in the casting mold.Oxonium ion and graphite anode reaction generate carbonic acid gas, constantly consumable anode.In stove, increase rare earth oxide through certain speed, metal is constantly separated out, and in time comes out of the stove, changes anode, and then just electrolysis operation continuously.
According to the utility model, Faradaic current voltage 12KA, 8.2V, much littler than the energy consumption of the electrolyzer of equal production level, one ton of metal of every production can be practiced thrift power consumption 2500kwh.
According to the utility model; Adopt the mode of improving grooved to realize energy-conservation; Because fire door reduces, burner hearth is deepened, automatically continuous-feeding, do not have a power failure and come out of the stove etc.; Thereby reduced the fire door heat radiation, can carry out low-temperature electrolytic, realized semi-automatic continuously uninterrupted operation, thereby reached the purpose of less energy-consumption, high yield.
Description of drawings
Fig. 1 is the front view according to the electrolyzer that is used for re metal electrolyzing of the utility model;
Fig. 2 is the left view according to the electrolyzer that is used for re metal electrolyzing of the utility model;
Fig. 3 is the vertical view according to the electrolyzer that is used for re metal electrolyzing of the utility model.
Embodiment
Referring to Fig. 1, according to the electrolyzer that is used for re metal electrolyzing of the utility model comprise negative electrode crowd 1, anode clusters 2, graphite cuvette 3 and accept crucible, cold smashing stuck with paste ramming layer 4, thermal insulation layer 5, conducting copper 6, outer steel sleeve 7, interior steel bushing 8 and small box fastener 9.
As shown in Figure 1, interior steel bushing 8 the insides are that cold smashing stuck with paste ramming layer 4, graphite cuvette 3 and crucible, are thermal insulation layers 5 between interior steel bushing 8 and the outer steel sleeve 7.
The negative pole of rectifying installation, positive pole are connected with anode clusters 2 with negative electrode crowd 1 through conducting copper 6 respectively, and negative electrode is crimped on the surface of negative electrode conducting copper 6 with bolt, and anode is crimped on the surface of anode conducting copper bar 6 with small box fastener 9.
Because the restriction of existing graphite material size, large scale electrolytic cell can only be to be spliced by the polylith graphite cake, so, must take required measure to prevent the fused salt seepage, and this material that uses is exactly the cold paste of smashing.When brickwork, use the brickwork instrument, the limit adds and coldly smashes that to stick with paste the limit ramming solid between interior steel bushing and graphite cuvette, makes that the slit between the graphite cake is enough little.The cold paste of smashing belongs to carbon material, is loose, granular before use, can become block by ramming during use, through behind the high bake, and its meeting carbonization, its hardness is near graphite cake hardness.
Table starts:
At first, give the globars heat supply, body of heater oven dry 48 hours with the baker voltage adjusting device.
Then, with three short circuit carbon-point starting the arc intensifications of playing the arc rod and being positioned over furnace bottom that three-phase alternating current is made the arc machine, the interpolation fused salt reached electrolysis temperature and fused salt liquid level in the simultaneously past stove in 48 hours.
At last, insert negative electrode in the fused salt, open rectifying installation, carry out the electrolysis operation according to setting height.
The electrolysis operation:
Under the direct current of rectifying installation is supplied with; Electric current forms a loop line through graphite anode, tungsten cathode and fused salt melt, in melt, forms the electrical forces effect of an orientation, and rare earth ion moves to negative electrode; Obtain electron reduction and become metal simple-substance, fall in the crucible.
When metal collection arrives to a certain degree, go out furnace apparatus with vacuum, stretch in the crucible like the titanium pipe, be extracted into metal in the casting mold.
Oxonium ion and graphite anode reaction generate carbonic acid gas, constantly consumable anode.
In stove, increase rare earth oxide through certain speed, metal is constantly separated out, and in time comes out of the stove, changes anode, thus electrolysis operation continuously.
Through in stove, increasing rare earth oxide at regular time and quantity, and in time extract the metal of separating out out and change the anode that consumes, can reach normal production, and be continuously uninterrupted electrolysis.
According to the electrolyzer of the utility model, graphite cuvette is a splice type, and interior dimensions length and width height is 1130 * 400 * 520mm.
Graphite cuvette on grooved than Wan An groove commonly used more deeply, narrower, this helps the control of electrolysis temperature and product percent of pass.
Anode is thicker longer: the length and width height is 420 * 230 * 100mm, has increased monolithic anodic duration of service like this, reduced and changed the temperature fluctuation that anode brings, and from production practice, anode consumption very even.Output can reach 320kg/ platform sky, and the product first-time qualification rate is more than 85%, and current efficiency is greater than 75%, and electrolytic power consumption is 8000kwh/t-REM, and unit consumption is 1.22t/t-REM.REM represents rare earth metal.
According to the large-scale energy-saving electrolyzer of the utility model, furnace life, operation conditions and quality product all can still be stablized, and be simultaneously, much little than the electrolyzer energy consumption with production level more than 2 years the time.Therefore, the utility model design is more reasonable, energy-conservation, is to be fit to the electrolytic large-scale fused-salt bath of fluoride system.
Claims (8)
1. electrolyzer that is used for re metal electrolyzing; It is characterized in that; Cold smashing stuck with paste the inside that ramming layer (4) and graphite cuvette (3) are separately positioned on interior steel bushing (8); Accept crucible and be arranged on the inside of graphite cuvette (3), thermal insulation layer (5) is arranged between interior steel bushing (8) and the outer steel sleeve (7), negative electrode crowd (1) and anode clusters (2) through conducting copper (6) respectively with the negative pole of rectifying installation, the anodal connection.
2. the electrolyzer that is used for re metal electrolyzing according to claim 1 is characterized in that, negative electrode crowd (1) and anode clusters (2) comprise at least two negative electrodes and at least two anodes respectively.
3. the electrolyzer that is used for re metal electrolyzing according to claim 1 and 2 is characterized in that, anode is a graphite, and negative electrode is a tungsten bar.
4. the electrolyzer that is used for re metal electrolyzing according to claim 1 and 2; It is characterized in that; Conducting copper (6) comprises the conducting copper and the anodic conducting copper of negative electrode; Negative electrode is crimped on the surface of negative electrode conducting copper through bolt, and anode is crimped on the surface of anode conducting copper bar through small box fastener (9).
5. the electrolyzer that is used for re metal electrolyzing according to claim 1 is characterized in that, the length of graphite cuvette is 1120～1150mm, and width is 380～420mm, highly is 510～530mm.
6. the electrolyzer that is used for re metal electrolyzing according to claim 5 is characterized in that, the length of graphite cuvette is 1130mm, and width is 400mm, highly is 520mm.
7. the electrolyzer that is used for re metal electrolyzing according to claim 1 is characterized in that, anodic length is 410～430mm, and width is 220～240mm, highly is 95～105mm.
8. the electrolyzer that is used for re metal electrolyzing according to claim 7 is characterized in that, anodic length is 420mm, and width is 230mm, highly is 100mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205324738U CN202415701U (en) | 2011-12-19 | 2011-12-19 | Electrolytic cell for electrolyzing rare-earth metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205324738U CN202415701U (en) | 2011-12-19 | 2011-12-19 | Electrolytic cell for electrolyzing rare-earth metal |
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| Publication Number | Publication Date |
|---|---|
| CN202415701U true CN202415701U (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205324738U Expired - Fee Related CN202415701U (en) | 2011-12-19 | 2011-12-19 | Electrolytic cell for electrolyzing rare-earth metal |
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| Country | Link |
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| CN (1) | CN202415701U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106835204A (en) * | 2017-04-21 | 2017-06-13 | 包头市鑫业新材料有限责任公司 | A kind of light rare earth electrolytic metal rotary electrolysis stove |
| CN109706483A (en) * | 2019-03-19 | 2019-05-03 | 中国科学院青海盐湖研究所 | Large capacity Rare Earth Electrolysis slot device |
-
2011
- 2011-12-19 CN CN2011205324738U patent/CN202415701U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106835204A (en) * | 2017-04-21 | 2017-06-13 | 包头市鑫业新材料有限责任公司 | A kind of light rare earth electrolytic metal rotary electrolysis stove |
| CN109706483A (en) * | 2019-03-19 | 2019-05-03 | 中国科学院青海盐湖研究所 | Large capacity Rare Earth Electrolysis slot device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20151219 |
|
| EXPY | Termination of patent right or utility model |